Coffee machine



FIG. 1 is a perspective view from a top of a coffee machine inaccordance with the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a back perspective view thereof.

The broken lines in the drawings represent portions of the article whichform no part of the claimed design.

CLAIM The ornamental design for a coffee machine, as shown and described. 